This European Standard specifies a test method for the determination of the dry matter content of a hot- or cold-water extract from paper or board. It is applicable to paper and board intended for boiling or filtering of foodstuffs.
The lower limit determination of the method is about 1 000 mg/kg of paper. This corresponds to 1,000 mg/dm of a paper with a grammage of 100 g/m, or 2,000 mg/dm for a board with a grammage of 200 g/m.
NOTE: Some volatile, water-soluble substances may escape during evaporation of the extract and subsequent drying of the residue.
BS EN 920:2001 history
2001BS EN 920:2001 Paper and board intended to come into contact with foodstuffs - Determination of dry matter content in an aqueous extract